// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_TEST_TEST_NAVIGATION_URL_LOADER_DELEGATE_H_
#define CONTENT_TEST_TEST_NAVIGATION_URL_LOADER_DELEGATE_H_

#include <memory>

#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/time/time.h"
#include "content/browser/loader/navigation_url_loader_delegate.h"
#include "net/url_request/redirect_info.h"

namespace base {
class RunLoop;
}

namespace content {

class StreamHandle;
struct ResourceResponse;

// PlzNavigate
// Test implementation of NavigationURLLoaderDelegate to monitor navigation
// progress in the network stack.
class TestNavigationURLLoaderDelegate : public NavigationURLLoaderDelegate {
public:
    TestNavigationURLLoaderDelegate();
    ~TestNavigationURLLoaderDelegate() override;

    const net::RedirectInfo& redirect_info() const { return redirect_info_; }
    ResourceResponse* redirect_response() const
    {
        return redirect_response_.get();
    }
    ResourceResponse* response() const { return response_.get(); }
    StreamHandle* body() const { return body_.get(); }
    int net_error() const { return net_error_; }
    int on_request_handled_counter() const { return on_request_handled_counter_; }

    // Waits for various navigation events.
    // Note: if the event already happened, the functions will hang.
    // TODO(clamy): Make the functions not hang if they are called after the
    // event happened.
    void WaitForRequestRedirected();
    void WaitForResponseStarted();
    void WaitForRequestFailed();
    void WaitForRequestStarted();

    void ReleaseBody();

    // NavigationURLLoaderDelegate implementation.
    void OnRequestRedirected(
        const net::RedirectInfo& redirect_info,
        const scoped_refptr<ResourceResponse>& response) override;
    void OnResponseStarted(const scoped_refptr<ResourceResponse>& response,
        std::unique_ptr<StreamHandle> body,
        const SSLStatus& ssl_status,
        std::unique_ptr<NavigationData> navigation_data,
        const GlobalRequestID& request_id,
        bool is_download,
        bool is_stream) override;
    void OnRequestFailed(bool in_cache, int net_error) override;
    void OnRequestStarted(base::TimeTicks timestamp) override;

private:
    net::RedirectInfo redirect_info_;
    scoped_refptr<ResourceResponse> redirect_response_;
    scoped_refptr<ResourceResponse> response_;
    std::unique_ptr<StreamHandle> body_;
    int net_error_;
    int on_request_handled_counter_;

    std::unique_ptr<base::RunLoop> request_redirected_;
    std::unique_ptr<base::RunLoop> response_started_;
    std::unique_ptr<base::RunLoop> request_failed_;
    std::unique_ptr<base::RunLoop> request_started_;

    DISALLOW_COPY_AND_ASSIGN(TestNavigationURLLoaderDelegate);
};

} // namespace content

#endif // CONTENT_TEST_TEST_NAVIGATION_URL_LOADER_DELEGATE_H
